Air exchange systems provide for the special design of special grilles that provide dispersion of the outgoing streams. In terms of functionality, this is not the most significant element of the whole complex, but it is difficult to do without it. Firstly, this component, depending on the type, allows you to control the throughput of the opening, and secondly, the ventilation grille also plays a decorative role. This applies to the elements located on the front of the facades, and to the models that adorn the exits of the canals inside the premises.
The use of ventilation grills
The main purpose of products of this kind is the structural completion of the ventilation shaft. Lattices are used when supplying such systems to industrial buildings, private homes, enterprises and offices. Of course, the list of functions they have may be different. In some cases, the task of dispersion comes first, while in others it is protection against external influences. For example, metal ventilation grilles are more often used precisely as a protection element that prevents not only the passage of garbage, but also large objects.
Separately, it is worth noting the function of the grille in the natural ventilation system. In this case, the air volumes that will penetrate the house depend on it. When choosing a part to equip such mines, not only dimensions, but also design features are taken into account. In particular, the ventilation grill may have a different arrangement of ribs.
Location classification
On the modern market, models for indoor and outdoor installation are presented. Products of the first category are used to equip the channels directly in the premises. It can be plastic ventilation grills in the form of deflectors or blinds. Such devices are small in size and pronounced design advantages.
Lattices for installation on the street side are most often made of metal, since their range of tasks includes the mentioned protection against leaves, dirt, small stones, etc. Models with a non-return valve are among the most functional. Using such devices, unidirectional air movement can be provided. Particularly relevant ventilation grille with a check valve in the winter, as it can be used to exhaust waste mass and prevent the passage of cold air.
Design Classification
There are two main types of ventilation grilles design - stationary and adjustable. In the first case, these are the simplest products that can be used when equipping any air ducts. Reliability and durability are the main advantages that such a ventilation grill has. The price of such products is usually 100-150 rubles, although many plastic models are not more expensive than 50 rubles. The second type of design is adjustable. This option is distinguished by functionality, as it allows not only to protect the mine, but also to manage its throughput. It is very convenient when operating in regions with a changing climate. There is no need to completely close the channel entrance due to bad weather - it is enough to change the position of the ribs in the most favorable way.
Metal ventilation grilles
Metal, due to obvious advantages, is more often used in the manufacture of gratings for massive air ducts, which are equipped with industrial enterprises and utility rooms. The greatest strength is sheet steel, treated with special anti-corrosion coatings. Such components protect the exhaust passages and from the penetration of rodents. In the equipment of private houses, aluminum ventilation grills are usually used, also coated with rust compounds. Such products lose to steel counterparts in strength and durability, but provide a more attractive appearance. It can be said that this is a compromise between the rough steel structure and the aesthetic appearance of the plastic grill.
Features of plastic grilles
When choosing between plastic and metal, you should not think that the first material is completely useless from the point of view of mechanical protection. Manufacturers use high-strength materials in the manufacture of such models, so you can count on a long service life. And this is not to mention their resistance to corrosion, ease of installation and neat appearance. In addition, plastic ventilation grills are cheaper and are available on the market in a larger assortment of shapes and sizes. If you plan a complex duct system with a non-standard cross-section, then they primarily turn to this segment. True, for large industrial duct mines, metal is still much preferable.
Dimensions of ventilation grilles
Projects of ventilation systems have recently moved away from standard sizes. The same private houses, as a rule, involve the development of individual plans, according to which further the construction of communication networks is carried out. Accordingly, on the market you can find a huge selection of products with different parameters. In the initial category, the ventilation grill is represented by the sizes 58x58 mm, 150x150 mm, etc. At the same time, rectangular models in the format 170x80 mm are also found. The most popular sizes for private use include 204x204 mm and 300x300 mm. Of course, you can find other sizes or even make an order for the individual manufacture of the lattice.
Conclusion
Usually during the construction process, auxiliary components and accessories receive the least attention. Sometimes it is not required, if this element performs a purely decorative role - you can change the texture or texture at any time. But it happens that additional components have a significant impact on the overall operation of a particular design. These parts include the ventilation grill. The price is 100-150 rubles. It seems insignificant, but it does not follow from this that the function of this element is not so important. The air exchange quality depends to a large extent on the grill. If we are talking about equipping residential premises, then the ventilation duct device also determines the microclimate characteristics. Moreover, this applies not only to grilles that are installed on street air vents. There is a separate category of products designed to provide ventilation between different rooms inside an apartment or house.